I can't wait to read this series. The above/below water effect looks a little awkward. If, on the part of the scene that is below the water, you could shade it a little darker than the above area, it would be much more effective. I totally see what you are trying to do, and it's pretty hard, but the darker shading would help with the visual. Overall I love your style and I'm exited to see more.

I like the layout and the way the text is easy to read (and grammatical, and spelt right... you wouldn't believe how actually uncommon that is). One thing you might want to do is making the full view smaller, no wider than the width of the screen so that you don't have to scroll across to look at it, which is very annoying.

It's a shame it won't be in colour. By the way, in the second panel where it's split into under water/above water, you might want to darken the under water part a little (maybe a few quick hatched lines or something) to make the distinction more obvious. As it is, at first it looked like the orca was wearing a weird headband or something before I realised what it was.

That's about it, so good job and I look forward to seeing more of this.